Elgin,

Here's one suggestion that could be used. Assuming the table with dups is named Master.

USE Master ORDER PrimaryKeyIndex IN 0 AGAIN ALIAS Master

SELECT * FROM Dups ;
 ORDER BY TheExpressionThatYouWantToFindDupsOf ;
  INTO CURSOR Dups
SELECT Dups
SCAN

  * Check this record against the last record

   * If this is a dup
         * SEEK the Dups.PK in Master
         * Increment the Master table field
ENDSCAN